<?php
error_reporting(0);

$real_url = $g_url = $_GET['url'];
preg_match('/https:\/\/v.douyin.com\/[^\s ]*/', $real_url, $match);

if ($match[0]) {
    file_get_contents($match[0]);
    preg_match('/https:[^\s]*/', $http_response_header[6], $match);
    $real_url = $match[0];
}

preg_match('/https:\/\/www.(douyin.com|iesdouyin.com\/share)\/video\/([^?&=\s\/]+)/', $real_url, $match);
$real_id = $match[2];

if ($real_id) {
    $video_info = json_decode(file_get_contents('https://www.iesdouyin.com/web/api/v2/aweme/iteminfo/?item_ids=' . $real_id));
    $v_url = str_replace('playwm', 'play', $video_info->item_list[0]->video->play_addr->url_list[0]);
    $v_title = $video_info->item_list[0]->desc;
    $v_ratio = $video_info->item_list[0]->video->ratio;
    $v_cover = $video_info->item_list[0]->video->cover->url_list[0];
}
?>

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <h2>抖音视频下载</h2>
    <div>
        <form>
            <input name="url" autocomplete="off" placeholder="请输入抖音分享的地址" style="width: 300px;" />
            <button>解析</button>
        </form>

        <?php echo $g_url ? '解析地址：' . $g_url : ''; ?>

        <?php if (!$v_url && $g_url) {
            echo '<br /> 解析失败，请重！';
        } ?>

        <?php if ($v_url) {
            echo '<hr />';
            echo $v_title;
            echo '<br />' . $v_ratio;
            echo '<br /> 下载地址：<a target="_blank" href="' . $v_url . '">' . $v_url . '</a>';
            echo '<br /><img src="' . $v_cover . '" />';
        } ?>
        <a href="https://github.com/lecepin/douyin-downloader" class="github-corner" aria-label="View source on GitHub"><svg width="80" height="80" viewBox="0 0 250 250" style="fill:#151513; color:#fff; position: absolute; top: 0; border: 0; right: 0;" aria-hidden="true">
                <path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path>
                <path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path>
                <path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path>
            </svg></a>
        <style>
            .github-corner:hover .octo-arm {
                animation: octocat-wave 560ms ease-in-out
            }

            @keyframes octocat-wave {

                0%,
                100% {
                    transform: rotate(0)
                }

                20%,
                60% {
                    transform: rotate(-25deg)
                }

                40%,
                80% {
                    transform: rotate(10deg)
                }
            }

            @media (max-width:500px) {
                .github-corner:hover .octo-arm {
                    animation: none
                }

                .github-corner .octo-arm {
                    animation: octocat-wave 560ms ease-in-out
                }
            }
        </style>
    </div>

</body>

</html>
